Lewis bridge



L. BRIDGE. Heating Stove.

Patented Dec.- 4, I866.

N. FErERS, FNOTD-UTHOGRAPMER, WASHINGTON,

IMPRQVED'HEAT-ING srovs.

LEWIS BRIDGE, 0E YORK, PENNSYLVANIA.

Letters Patent No. 60,132, dated December 4, 1866. l

SPECIFICATION.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, LEWIS BRIDGE, of York, York'county, State of Pennsylvania, have invented a new and useful improvement in Heating Stoves; and I do hereby declare that-the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being bad to r the accompanying drawings, forming part of this specification, in which- Figure 1 is a yerticalIcross-sectibn in the line a: at, fig. 2.

Figure 2 is a. vertical section through the longer diameter, in the line yy, fig. 1.

Figure 3 is a horizontal section through the. drum, in the line 2 z, fig. 1.

Similar letters of reference indicate like parts.

This invention relates to improvements in parlor fire-side heating stoves, adapted to either wood or coal,

and is designed to utilize the heat' by the more complete radiation intothe apartment, or its direction to an upper chamber, through a suitable flue attached to the stove, of that portion in the back part ofthe stove which is usually absorbed in the masonry of the fire-place and lost. For this purpose, in addition to a cold-air chamberrunning from the bottom behind the fire-box, the back and sides of the stove, when set in a fire-place, are surrounded .with a sheet-metal hood or bonnet, which also passes over the top of the stove to the front, and conducts the heat that is radiated at the back of the stove through the cold-air chamber into an open horizontal air'space over the stove directly into the apartment, or up through a drum into the upper room, as aforesaid. In addition to this arrangement for utilizing all the heat of a fire, a shifting division grate is introduced into the fire chamber, in the-line of the longer axis ofthe stove, for the purpose of changing the capacity of the fire chamber to hold and burn more or less fuel, according to the temperature of the weather, by moving its position forward and back, or removing it entirely in extremely cold weather. The stove may be made of cast.

or sheet iron, rectangular, or of any suitable'forin, but, as represented, I prefer making it oval, of sheet iron. A represents the fire chamber, with an ordinary grate :v z, and a shifting grate}; a, suspended longitudinally on the top of the fire-brick lining, so that it can be moved to the front or rear more or less, as required,

the side lining being made nearly or quite straight from the front to the rear of the fire chamber, for the. purpose. The base 13, which sets upon legs 12 b, as usual, is surrounded with a perforated shield or guard c c, and

contains the ash pan 0. At the back of the fire chamber A, extending from the base to the top of the stove,

is ajacket, e e, enclosing a vertical air space D, open at the bottom for the entrance of cold air, and at the top for the passage of the warmed current of air passing through into another horizontal air space E over the fire chamber, and under a fiat horizontal annular drum F. At the back part-of the firechamber A are placed two exit fines G G, direct and indirect, which pass through the air space E up into the annular drum F, and are provided with dampers f f, their rods (Z (1 extending across to the front of the stove, to regulate the course of the products of combustion. When the fine G is closed and G is open, the products of combustion pass directly up into the exit pipe H to thechimney'; but when G is closed and G is open, they are diverted in.their course] by a! partition g, and pass around the annular drum F, to make their final escape through the pipe H, after radiating their heat. Behind and over the stove, extending from the back nearly to the front, is placed an,

independent sheet-imp or tin hood h, enclosing an air space I, which surrounds the. backand sides of the stove and the top of the annular drum F. In the upper part of the hood k h provision is made for a conducting flue K, shown in red, which may be connected, if desired, for conveying the heated air from the air spaces and I into an upper chamber, to be r egulatedin its passage by the damper'i on the rod j. By this arrangement it will be seen thatnone'of the heat is lost by absorption in the back of the fire-place, and that it will be as completely utilized in warmin g an apartment as if the st more or less fu-el, according to the temperature, may be perfectly regulated by the shifting grate a (1, thus utilizing all the heat and economizing fuel. The course of the heated air around the stove is also governed by the damper z, and may be thrown into the room, or conveyed to an upper chamber, at pleasure.

Having described my imprbved parlor fire-place heating stove, what I claim as new, and desire to secure by Letters Patentg I claim the arrangement of 'a parlor fireplace heating stove, with a vertical cold-air space D around the back of the fire chamber A, in combination with the surrounding hood 1!. h, for utilizing the'heat radiated from the rear of the stove and conducting it into the room, or to an upper chamber, when desired, constructed and operating substantially as and for the purposes herein described.-

The above specification of my invention signed by me this 5th day of July, 1866. r

. LEWIS BRIDGE.

Witnesses GEORGE M. SHETTER, H. LEBnRs.

ove was sitting out 1n the room, while the consumption of i 

